Circuit Breakers

Having an effective and well-designed circuit protection system in every building is vital. It not only protects machinery and equipment from costly damage or even worse an electrical fire, but good circuit protection also ensures people are safe too.

Here, at RS we stock an extensive range of high-quality products within our circuit breaker range. They include various types of protection devices as well as consumer units, distribution boards and accessories. Whether you are designing and building a new system or maintaining an old one we have everything you need, providing the perfect end-to-end solution.

What are the different types of circuit breakers?

RCBO Breakers

RCBO stands for Residual Current Circuit Breaker with Over Current protection. Installed in consumer units they protect from short circuits, overload current and residual current as they combine all the functions of an MCB and an RCCB.

RCCB Breakers

RCCB stands for Residual Current Circuit Breaker. They are designed to quickly disconnect any circuit as soon as current leaks to the earthing wire. RCCBs are also effective in protecting from electrocution or shock from direct contact.

MCB Breakers

MCB stands for Miniature Circuit Breaker. They are designed to protect an electric circuit from overcurrent only. They do not safeguard people from electric shock caused by earth leakage.

MCCB Breakers

MCCB stands for Moulded Case Circuit Breaker. They are another type of electrical protection device used in higher current rating applications where an MCB would not suffice. An MCCB protects against overload and short circuit faults. With its high breaking capacity and a wider range of current ratings, MCCBs are typically found in industrial systems rather than domestic systems.

Busbar Feed & Tap-Off Units
Busbar Feed & Tap-Off Units
Busbar Trunking
Busbar Trunking
Busbar Trunking Accessories
Busbar Trunking Accessories
Busbars
Busbars
Circuit Breaker Accessories
Circuit Breaker Accessories
Circuit Trips
Circuit Trips
Consumer Units
Consumer Units
Distribution Boards
Distribution Boards
Electronic Circuit Breakers
Electronic Circuit Breakers
Energy Monitoring Devices
Energy Monitoring Devices
MCBs
MCBs
MCCBs
MCCBs
RCBOs
RCBOs
RCCBs
RCCBs
Surge Protection Devices
Surge Protection Devices
Thermal Breakers
Thermal Breakers

39184 Products showing for Circuit Breakers

1821 of 999+
Eaton RCBO, 25A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type A, Type C, FRBdM Range
  • RS Stock No. 120-982
  • Mfr. Part No. 168206 FRBDM-C25/2/003-G/A
Each
€192.00(exc. VAT)
Better World
Siemens SENTRON 5SL4 MCB, 3+N, 8A Curve C, 400V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 209-5995
  • Mfr. Part No. 5SL4608-7
Each
€149.18(exc. VAT)
Better World
Schneider Electric Acti 9 Acti9 iDT40T XA MCB, 3P, 32A Curve C, 400V AC
  • RS Stock No. 238-3424
  • Mfr. Part No. A9PA2332
Each
€105.20(exc. VAT)
Sensata Airpax Airpax Thermal Circuit Breaker - 209 2 Pole 240V ac Voltage Rating Panel Mount, 100A Current Rating
  • RS Stock No. 275-0056
  • Mfr. Part No. 209-2-1-63-4-9-100-A-V
1 Box of 5
€884.82(exc. VAT)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 125A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS Stock No. 271-9708
  • Mfr. Part No. 3VA11123GF460AA0
Each
€614.36(exc. VAT)
Eaton Eaton Moeller NZM Undervoltage Release for use with N(S)1(-4), NZM1(-4)
  • RS Stock No. 255-721
  • Mfr. Part No. 259545 NZM1-XUHIV12DC
Each
€181.00(exc. VAT)
Eaton FAZ MCB, 4P, 6A Curve C
  • RS Stock No. 230-1343
  • Mfr. Part No. 279055 FAZ-C6/4
Each
€202.70(exc. VAT)
Lovato Add-on blocks Phase Barrier for use with GL Series Switch Disconnectors
  • RS Stock No. 248-5573
  • Mfr. Part No. GLX903
Each
€86.45(exc. VAT)
ABB Emax2 Electronic Circuit Breaker 630A 1SDA07, 4 channels
  • RS Stock No. 259-4492
  • Mfr. Part No. 1SDA072702R1
Each
€5,951.53(exc. VAT)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 160A, Breaking Capacity 55 kA, DIN Rail Mount
  • RS Stock No. 271-9788
  • Mfr. Part No. 3VA1116-5FE46-0AA0
Each
€722.80(exc. VAT)
Lovato ModuLo P1MB MCB, 4P, 2A Curve D, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 825-5986
  • Mfr. Part No. P1MB4PD02
Each
€151.98(exc. VAT)
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 4P 40A, Breaking Capacity 2.5 kA
  • RS Stock No. 245-331
  • Mfr. Part No. 3VA6140-7KT41-0AA0
Each
€1,718.50(exc. VAT)
Eaton RCBO, 40A Current Rating, 2P Poles, 300mA Trip Sensitivity, Type A, Type C, FRBm6 Range
  • RS Stock No. 123-272
  • Mfr. Part No. 170732 FRBM6-C40/2/03-A
Each
€163.00(exc. VAT)
ABB Emax2 Electronic Circuit Breaker 1kA 1SDA07, 3 channels
  • RS Stock No. 259-4073
  • Mfr. Part No. 1SDA072157R1
Each
€8,349.15(exc. VAT)
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 3 kA
  • RS Stock No. 245-481
  • Mfr. Part No. 3VA6210-5KL31-2AA0
Each
€2,227.69(exc. VAT)
ABB Emax2 Electronic Circuit Breaker 4kA Ekip Hi-Touch LSI, 3 channels
  • RS Stock No. 259-4397
  • Mfr. Part No. 1SDA072579R1
Each
€28,659.56(exc. VAT)
Schneider Electric, ComPacT MCCB 4P 160A, Fixed Mount
  • RS Stock No. 260-7677
  • Mfr. Part No. C12B4TM160B
Each
€986.57(exc. VAT)
Better World
Siemens SENTRON Cover for use with 3VA1 250
  • RS Stock No. 210-9318
  • Mfr. Part No. 3VA9211-0WF40
Each
€35.53(exc. VAT)
Better World
ABB, XT2S MCCB 4P 25A, Fixed Mount
  • RS Stock No. 236-7525
  • Mfr. Part No. 1SDA067846R1 XT2S 160 Ekip LSI 25A FF
Each
€1,459.27(exc. VAT)
Eaton IZMX/INX Electronic Circuit Breaker 1.25kA IZMX/INX, 4 channels , Withdrawable
  • RS Stock No. 127-527
  • Mfr. Part No. 183460 IZMX16B4-P12W-1
Each
€9,758.00(exc. VAT)
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